Observations, notes, quotes and some facts on Day 3 of Browns training camp …

* Practice screeched to a halt for several minutes when backup offensive lineman Ryan Miller suffered a concussion in a one-on-one blocking drill. Miller lost consciousness for a while, a source said.

As Miller lay on the fieldhouse floor (practice was moved indoors because of wet conditions), players surrounded him and said prayers silently. Eventually, Miller moved his arms and legs and was carried to an ambulance on a medical cart and transported to a local hospital. He was then moved to Cleveland Clinic main campus.

The Browns notified Miller's family before approving release of his name in media reports.

By the time practice was over, coach Rob Chudzinski reported, “At this time Ryan’s doing well, he’s responsive. Sounds like things are better.”

Later, the Browns announced that Miller was resting comfortably and was likely to be released from the hospital Saturday evening.

Miller was a sixth-round draft pick from Colorado in 2012. At 6-7 and 320 pounds, he’s one of the biggest players on the team. He was working at guard and tackle.

“He’s a nice guy, really easy going, a hard worker, really kind of a gym rat type guy,” said tackle Joe Thomas. “He and have become good friends in the last year.

“The thing you worry about is the neck. When we heard it was not neck-related, that was fantastic.”

Chudzinski huddled the players together before practice resumed about 15 minutes later and asked them to refocus on the task at hand.

“This team is a family. When something happens to a family member like that, it’s tough,” said Chudzinski. “This team did a great job of staying focused.”

* Practiced was moved indoors because of a forecast for rain and already-saturated fields. It was the first day players were in shoulder pads, but shorts were worn and work was restrained by the confines of the indoor facility. Chudzinski said Sunday’s practice will be in full pads.

* A full period of practice was devoted to screen plays. They have not been run effectively by the Browns, it seems, since agile left guard Eric Steinbach’s last productive year in 2010.

“Screens have always been something that Norv (Turner, offensive coordinator) –- teams Norv have been with -- has really excelled at,” Chudzinski said. “I’ve been fortunate to be around Norv and learn a thing or two about screens.”

The key to executing the screen play: “There’s a lot of coordination and timing between the offensive line and running backs (needed),” Chud said. “The timing of it happening and knowing the rushes and the right people to do it against, as well.”

* Work on screen passes served as a showcase for Dion Lewis. The diminutive running back obtained in a trade with Philadelphia has a stop-and-go ability that had several defensive players grasping at air. Linebacker Quentin Groves actually fell flat on his stomach as Lewis ran away from him. The artificial turf surface inside the fieldhouse accentuated Lewis’ quickness.

* Nose tackle Phil Taylor and tight end Kellen Davis returned to practice and were limited to individual drills. Offensive tackle Oniel Cousins will be out a couple weeks with a sprained ankle, Chudzinski said.

* The offensive coaches had no tolerance for a false start by guard Jason Pinkston.He was yanked from the lineup immediately after the infraction.